// Copyright 2017 The LUCI Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

//go:build windows
// +build windows

package fs

import (
	"os"
	"syscall"
)

func setWinFileAttributes(path string, attrs WinAttrs) error {
	if attrs == 0 {
		return nil
	}
	p, err := syscall.UTF16PtrFromString(path)
	if err != nil {
		return err
	}
	return syscall.SetFileAttributes(p, uint32(attrs))
}

func getWinFileAttributes(info os.FileInfo) (WinAttrs, error) {
	raw := info.Sys().(*syscall.Win32FileAttributeData)
	return WinAttrs(raw.FileAttributes) & WinAttrsAll, nil
}
